Smart contracts

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract USDB is ERC20 {
  constructor() ERC20("USDB", "USDB") {
    _mint(msg.sender, 5000 * 10 ** 18);
  }

  function mintUSDB(uint256 amount) external {
    _mint(msg.sender, amount);
  }
}